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The Contributions from the United States National Herbarium (Contr. U.S. Natl. Herb.) is an externally peer-reviewed periodical published by the Department of Botany at irregular intervals. It is available for free and as an exchange publication for the Smithsonian Institution Libraries. The purpose of the Contr. U.S. Natl. Herb. is to provide a vehicle for disseminating the results of the scientific research at the U.S. National Herbarium. These include but are not limited to, longer taxonomic papers, checklists, floras, and monographs produced by the staff and associates at the U.S. National Herbarium.

Contributions from the U.S. National Herbarium was first published in 1890 by the United States Department of Agriculture. From July 1, 1902, forward it was published as a Bulletin of the United States National Museum. The series was discontinued after volume 38, 1974, and has been revived with volume 39, 2000. A narrative describing the history of the Contr. U.S. Natl. Herb. appeared in The Plant Press, vol. 7. No. 4, 2004.

PDF files of the most recent issues (vol. 49-present) of the Contr. U.S. Natl. Herb. are available on-line and PDF files of scanned volumes 1−53 can be found at Botanicus.org. While supplies last, you may request a copy of any of the modern series (vol. 39-present) free of charge from the Department of Botany. The Contr. U.S. Natl. Herb. is also available as an exchange publication from the Smithsonian Institution Libraries. If you have any questions regarding availability of past issues or the exchange program, please write to CUSNH, Department of Botany, MRC 166, National Museum of Natural History, Smithsonian Institution, Washington, DC, 20013-7012, USA, (CUSNH@si.edu). If you have any questions about manuscript submission or comments on previous volumes, please contact the editor of Contr. U.S. Natl. Herb., Paul M. Peterson (peterson@si.edu).

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Abstract

Recent fieldwork in Bolivia has resulted in the recognition of 180 species in 36 genera of Acanthaceae. The purpose of this taxonomic treatment is to discuss, in alphabetical order, all the known Bolivian species of the family, and as such, this work is a ready reference for botanists, so that they may identify their collections of acanthaceous plants or use the keys for detecting further undescribed species. Except for brief discussions to indicate possible relationships of the novelties to allied species, no phylogenetic inferences within the family have been made. A full list of synonyms for the Bolivian species and those of adjoining countries has been prepared. Keys, species descriptions, and specimen distribution data is provided. When available, illustrations, ecological and conservation data have been included. Two new species of Dicliptera, D. palmariensis and D. purpurascens are described and illustrated, and Lepidagathis alverezia is a new combination. The following 26 names are lectotypified: Ancylogyne peruviana, Aphelandra albadenia, Aphelandra simplex, Arrhostoxylum haenkeanum, Beloperone denudata, Beloperone matthewsii, Beleperone nodicaulis, Chaetochlamys ciliata, Chaetochlamys macrosiphon, Chaetothylax boliviensis, Chaetothylax tocantinus, Dicliptera pohliana, Dicliptera seriacea, Dicliptera squarrosa, Geissomeria tetragona, Justicia diamantina, Justicia dubiosa, Justicia yurimaguensis, Leptostachya parviflora, Mendoncia meyeniana, Orthotactus strobilacea, Pachystachys lutea, Porphyrocoma lanceolata, Ruellia glischrocalyx, Ruellia haenkeana, and Stephanophysum ruizianum.